In this question , we have to find the postulate that is illustrated for the real numbers

The postulate is Additive inverse postulate which states that

Where a is the real number and -a is the opposite of a. It states that , if opposite of a number is added with the number, the result is 0 .
3/10 times 2/3 3 times 2 is 5 and 10 times 3 is 30 5/30 a
Answer:
6 ugly
Step-by-step explanation:
6 x 3 equals 18
For the first one, x=-1, y=-8